Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fb222128b574620254294b676c2c9f7f58266a2e7fbbbe55672f5512a42446d1' 
  AND token = 'zoZ7kPa4baxymU0ajzIKH873liNifICQ5v2/eo3s1bw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}